Invoice Reversal

Dear Experts/Guru's

I am facing issue in Invoice reversal.

Suppose Invoice was generated in May 2015.

and want to reverse in November after new service Tax 14.5.

Here in Pricing I've added 1 more condition type for 0.5% as SBC (Swachh Bharat Tax)

Now during the reversal new condition picking in reversal, How we can deactivate new condition value in Old Invoice.

how to maintain copy control or any other way to..

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Message was edited by: Jyoti Prakash